Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

VETS1003 > oral cavity > Flashcards

oral cavity Flashcards

1
Q

dolicocephalic

A

narrow head

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

mesaticephalic aka mesocephalic

A

average skull

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

brachycephalic

A

rounded head, short nose

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

functions of oral cavity

A
  • Selection
  • Prehension
  • Mastication
  • Ensalivation
  • Forming a bolus
  • Swallowing/deglutition
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

boundaries of oral cavity

A

lips, cheeks, hard and soft palate, tongue, floor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

vestibule

A

space between soft tissue (lips and cheeks) and the teeth and gums

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

paired incisive ducts

A

where the oral cavity communicates with the nasal cavity

The fissure on either side of the incisive papilla papilla is the oral opening of the incisive duct.

connected to VMO in some species

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

incisive papilla

A

A small eminence located just caudal to the central incisor
teeth

The fissure on either side of the papilla is the oral opening of the incisive duct.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

caudally the oral cavity is continuous with the oropharyns, through the

A

isthmus faucium (passage to oropharynx)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

VMO

A

vomeronasal organ aka Jacobson’s organ

receptors sense pheromones especially sexual odours

flehmen response; increases opening of the ducts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Which of the following classifications of head shape refers to a normal or average shape of skull?

A

Mesaticephalic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

A brachycephalic breed:

A

Has a rounded cranium, with a short nose

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Which of the following is NOT a function of the oral cavity?

Ensalivation

Absorption

Mastication

Deglutition

A

Absorption

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Which of the following statements BEST describes the dolichocephalic classification of head shape?

A

A long, narrow head and nose

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Which of the following is NOT a boundary of the oral cavity?

Lips

Cheeks

Hard palate

Pharynx

A

Pharynx

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Mucous membrane are normally:

A

Pink, with a capillary refill time of 1–2 s

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

The vertical median groove in the upper lip is known as the:

A

Philtrum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

The internal surface of the cheeks may have papillae in which of the following species?

A

cow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Which of the following bones does NOT contribute to the hard palate?

Incisive

Palatine

Maxilla

Occipital

A

occipital

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

In some species, the cranial portion of the hard palate is free of ridges and is covered by thick cornified epithelium, in lieu of upper incisive teeth. This is known as the dental pad. Which of the following animals has a dental pad?

A

cow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

The tongue is attached to the floor of the mouth in the midline by the:

A

Frenulum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Which muscle of the tongue is involved in curling the tongue?

A

Genioglossus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Which of the following papillae is mechanical in function?

Vallate papillae

Foliate papillae

Conical papillae

Fungiform papillae

A

conical papillae

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Which of the following nerves is NOT involved in sensing taste (the innervation of taste buds)?

Oculomotor nerve (CN III)

Facial nerve (CN VII)

Glossopharyngeal nerve (CN IX)

Vagus nerve (CN X)

A

Oculomotor nerve (CN III)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Which of the following papillae is involved in the transduction of taste (i.e., contains taste buds)?

Filiform papillae

Vallate papillae

Lenticular papillae

Conical papillae

A

vallate papillae

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

mucous membranes

A

moist from glands: (labial, buccal, lingual)
salivary glands
good blood supply
CRT 1-2s

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

CRT prolonged

A

indication of decreased peripheral perfusion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

grey white of muddy mucous membranes

A

hypovolaemia or anemia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

yellow mucous membranes

A

jaundice

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

philtrum

A

vertical median groove (middle of upper lip)

31
Q

purple to red mucous membranes

A

septic

32
Q

rima oris

A

where the dorsal and ventral lips come together
opening that food goes in

33
Q

commissures of the slips

A

laterally where the lips come together (corner of the mouth)

34
Q

lips covered with skin, with short and long sensory hairs and occasional whiskers called

A

vibrissae

35
Q

skin of lips covers a fibroelastic layer and the ______ muscle

A

orbicularis oris

35
Q

internally the lips are covered with

A

labial mucosa, which is continuous with gingivae (gums)

mucous is stratified squamous, and is keratinized if the diet contains a lot of roughage, such as in horses and ruminants

36
Q

some ______ are present in the margins of the mouth; especially in horses; very mobile lips

A

labial glands

37
Q

internal cheek skin covered by

A

stratified squamous epithelium; usually smooth but may have aborally directed papillae such as in ruminants

38
Q

floating

A

sharp edges of teeth filed away to prevent damage to mucosa of cheeks

39
Q

mucosa is supplied with secretions from the

A

buccal glands (arranged into dorsal and ventral groups)

40
Q

the dorsal buccal gland in carnivores

A

zygomatic gland; large and discrete

41
Q

the ducts of the zygomatic salivary gland (dorsal buccal gland in carnivores) open into the

A

vestibule near the last molar

42
Q

what bones make up hard palate

A

incisive, maxilla and palatine

43
Q

hard palate is divided into 2 fused halves by a

A

median raphe;
each half is thrown up into a number of crescent shaped ridges or rugae

44
Q

hard palate covered by

A

thick stratified squamous epithelium

usually lacks glands

under epithelium there is rich venous plexus

45
Q

in ruminants the cranial portion of hard palate is called

what is it covered with

A

the dental pad; free of ridges and covered by thick cornfield (layers of dead keratinized cells) stratified squamous epithelium

46
Q

where do you find incisive ducts in ruminants

A

lie either side of incisive papilla (on dental pad) behind first pair of incisors

47
Q

what species does not have incisive ducts

A

horse

48
Q

soft palate extends from

A

causal edge of hard palate

49
Q

tongue root

A

attached to hyoid apparatus and surrounding connective tissue

50
Q

apex of tongue

A

tip

51
Q

sulcus of tongue

A

line down the middle

52
Q

lyssa

A

on midline under mucosa, thin hard cord that extends from apex to level where frenulum attaches

53
Q

frenulum

A

ventral surface is attached to the floor of the mouth in the midline

54
Q

torus

A

in ruminants; big prominence over caudal part of body and root of tongue, generates negative pressure for suction

55
Q

intrinsic vs extrinsic muscles of tongue

A
  • intrinsic; actually within the tongue, dorsal and have many fibres with connective tissue and fat
  • extrinsic; originate outside of tongue, more ventral, responsible for major movement
56
Q

muscles of tongue are all innervated by

A

hypoglossal nerve

57
Q

styloglossus

A
  • from stylohyoid
  • elevates and retracts
  • long, thin, lateral
58
Q

hyoglossus

A
  • from basihyoid
  • depresses and retracts
59
Q

genioglossus

A
  • from medial surface of rostral mandible
  • runs dorsal, rostral and causal
  • depresses, moves rostral and curls
60
Q

geniohyoid

A
  • mandibular symphysis to basihyoid
  • move hyoid (and tongue) rostral
61
Q

tongue papillae (this isn’t all of them)

A
  • filiform; mechanical, all over tip of tongue
  • conical; mechanical, bigger filiform, in ruminants found on side of tongue, over root of tongue longer spiky looking, direct food back
  • lenticular; mechanical; flat and rounded, mainly on torus to enhance suction
  • fungiform; taste, also found on rostral 2/3s so with the filiform, they are bigger and darker
  • vallate; taste, v shaped crescent array, found 2/3 way back from tip
62
Q

surface of tongue is lined by

A

stratified squamous epithelium, may be keratinized
raised bumps called papillae; mechanical or for taste

63
Q

taste buds

A

have specialized receptor cells in them that respond to chemical stimuli thats present in food/ drink

64
Q

conical papillae

A

very large filiform papillae, are mechanical in function, and
are typically found over the root of the tongue, pointing caudally and serving to direct the food into the pharynx during deglutition, or swallowing.

65
Q

lenticular papillae

A

flat, rounded papillae, mainly on the torus, in ruminants. They may function to enhance suction of the tongue to the hard palate.

66
Q

fungiform papillae

A

round protrusions, kind of like mushrooms. They have a thin
layer of epithelium studded with taste buds on the free surface. The comparatively rich blood supply to these gives them a red or pink appearance. They are typically
found on the rostral two‐thirds of the tongue, but you might find a few on the dorsal surface of the root.

67
Q

vallate papillae

A

aka s circumvallate papillae. They are very large, and are typically found on the dorsal surface of the tongue, two‐thirds of the way back from the tip of the tongue, in a V‐shaped or crescent‐shaped array. Each papilla is surrounded by a deep groove, with taste buds on the side of the papilla

68
Q

foliate papillae

A

found in two dorsolateral groups, just rostral to the palatoglossal
arches. Each grouping forms an ovoid array of leaf‐like transverse papillae. They are separated by deep clefts or crypts, into which serous glands discharge. Taste buds are found on the sides of the clefts.

69
Q

marginal papillae

A

found in young pups, and help to seal the lips around the nipple, preventing milk from being spilled. They are lost as the pups’ diet changes from milk to solid food.

70
Q

histology of taste buds

A
  • pale- staining ovoid bodies
  • sit on dermal papillae
  • extend from basal lamina of stratified squamous epithelium
71
Q

epithelium over each taste bud is perforated by the

A

taste pore

72
Q

under the taste pore 2 cell types appear;

A
  • supporting cells; spindle shaped with free ends surrounding the inner taste pore
  • neuroepithelial cells; skebder with short taste “hairs” protruding to inner taste pore
73
Q

taste but innervation

A

complex, input to CNS vis facial nerve (CN VII), glossopharyngeal nerve (CN IX) and vagus nerve (CN X)

74
Q

lingual tonsils

A
  • aggregated lymph nodules around root of tongue
75
Q

when lingual tonsils are large such as in cows, can have;

in cats and dogs and small ruminants;

A
  • deep invaginations or crypts lined w stratified squamous epithelium and frequently filled with degenerating lymphocytes
  • lymphatic tissue is diffuse and not grossly visible

VETS1003 (23 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions